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A249787 as a simple table

n a(n)
0 1
1 1
2 -1
3 0
4 -3
5 96
6 -621
7 0
8 -17703
9 1161216
10 -13961241
11 0
12 -1125897003
13 111588212736
14 -1962807307461
15 0
16 -313129783869903
17 41521527606214656
18 -961674168773599281
19 0
20 -255030903352871048403
21 42355944224989145726976
22 -1217055203596100484316701
23 0

[1,1,-1,0,-3,96,-621,0,-17703,1161216,-13961241,0,
 -1125897003,111588212736,-1962807307461,0,
 -313129783869903,41521527606214656,
 -961674168773599281,0,-255030903352871048403,
 42355944224989145726976,
 -1217055203596100484316701,0]

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Last modified April 18 09:35 EDT 2024. Contains 371779 sequences. (Running on oeis4.)